Let's roll up our sleeves and solve this. We have 515 and we're going to multiply it by 451, essentially adding 515 to itself 451 times.
Step 1: 0 + 515 = 515
Step 2: 515 + 515 = 1030
Step 3: 1030 + 515 = 1545
Step 4: 1545 + 515 = 2060
Step 5: 2060 + 515 = 2575
Step 6: 2575 + 515 = 3090
Step 7: 3090 + 515 = 3605
Step 8: 3605 + 515 = 4120
Step 9: 4120 + 515 = 4635
Step 10: 4635 + 515 = 5150
Step 11: 5150 + 515 = 5665
Step 12: 5665 + 515 = 6180
Step 13: 6180 + 515 = 6695
Step 14: 6695 + 515 = 7210
Step 15: 7210 + 515 = 7725
Step 16: 7725 + 515 = 8240
Step 17: 8240 + 515 = 8755
Step 18: 8755 + 515 = 9270
Step 19: 9270 + 515 = 9785
Step 20: 9785 + 515 = 10300
Step 21: 10300 + 515 = 10815
Step 22: 10815 + 515 = 11330
Step 23: 11330 + 515 = 11845
Step 24: 11845 + 515 = 12360
Step 25: 12360 + 515 = 12875
Step 26: 12875 + 515 = 13390
Step 27: 13390 + 515 = 13905
Step 28: 13905 + 515 = 14420
Step 29: 14420 + 515 = 14935
Step 30: 14935 + 515 = 15450
Step 31: 15450 + 515 = 15965
Step 32: 15965 + 515 = 16480
Step 33: 16480 + 515 = 16995
Step 34: 16995 + 515 = 17510
Step 35: 17510 + 515 = 18025
Step 36: 18025 + 515 = 18540
Step 37: 18540 + 515 = 19055
Step 38: 19055 + 515 = 19570
Step 39: 19570 + 515 = 20085
Step 40: 20085 + 515 = 20600
Step 41: 20600 + 515 = 21115
Step 42: 21115 + 515 = 21630
Step 43: 21630 + 515 = 22145
Step 44: 22145 + 515 = 22660
Step 45: 22660 + 515 = 23175
Step 46: 23175 + 515 = 23690
Step 47: 23690 + 515 = 24205
Step 48: 24205 + 515 = 24720
Step 49: 24720 + 515 = 25235
Step 50: 25235 + 515 = 25750
Step 51: 25750 + 515 = 26265
Step 52: 26265 + 515 = 26780
Step 53: 26780 + 515 = 27295
Step 54: 27295 + 515 = 27810
Step 55: 27810 + 515 = 28325
Step 56: 28325 + 515 = 28840
Step 57: 28840 + 515 = 29355
Step 58: 29355 + 515 = 29870
Step 59: 29870 + 515 = 30385
Step 60: 30385 + 515 = 30900
Step 61: 30900 + 515 = 31415
Step 62: 31415 + 515 = 31930
Step 63: 31930 + 515 = 32445
Step 64: 32445 + 515 = 32960
Step 65: 32960 + 515 = 33475
Step 66: 33475 + 515 = 33990
Step 67: 33990 + 515 = 34505
Step 68: 34505 + 515 = 35020
Step 69: 35020 + 515 = 35535
Step 70: 35535 + 515 = 36050
Step 71: 36050 + 515 = 36565
Step 72: 36565 + 515 = 37080
Step 73: 37080 + 515 = 37595
Step 74: 37595 + 515 = 38110
Step 75: 38110 + 515 = 38625
Step 76: 38625 + 515 = 39140
Step 77: 39140 + 515 = 39655
Step 78: 39655 + 515 = 40170
Step 79: 40170 + 515 = 40685
Step 80: 40685 + 515 = 41200
Step 81: 41200 + 515 = 41715
Step 82: 41715 + 515 = 42230
Step 83: 42230 + 515 = 42745
Step 84: 42745 + 515 = 43260
Step 85: 43260 + 515 = 43775
Step 86: 43775 + 515 = 44290
Step 87: 44290 + 515 = 44805
Step 88: 44805 + 515 = 45320
Step 89: 45320 + 515 = 45835
Step 90: 45835 + 515 = 46350
Step 91: 46350 + 515 = 46865
Step 92: 46865 + 515 = 47380
Step 93: 47380 + 515 = 47895
Step 94: 47895 + 515 = 48410
Step 95: 48410 + 515 = 48925
Step 96: 48925 + 515 = 49440
Step 97: 49440 + 515 = 49955
Step 98: 49955 + 515 = 50470
Step 99: 50470 + 515 = 50985
Step 100: 50985 + 515 = 51500
Step 101: 51500 + 515 = 52015
Step 102: 52015 + 515 = 52530
Step 103: 52530 + 515 = 53045
Step 104: 53045 + 515 = 53560
Step 105: 53560 + 515 = 54075
Step 106: 54075 + 515 = 54590
Step 107: 54590 + 515 = 55105
Step 108: 55105 + 515 = 55620
Step 109: 55620 + 515 = 56135
Step 110: 56135 + 515 = 56650
Step 111: 56650 + 515 = 57165
Step 112: 57165 + 515 = 57680
Step 113: 57680 + 515 = 58195
Step 114: 58195 + 515 = 58710
Step 115: 58710 + 515 = 59225
Step 116: 59225 + 515 = 59740
Step 117: 59740 + 515 = 60255
Step 118: 60255 + 515 = 60770
Step 119: 60770 + 515 = 61285
Step 120: 61285 + 515 = 61800
Step 121: 61800 + 515 = 62315
Step 122: 62315 + 515 = 62830
Step 123: 62830 + 515 = 63345
Step 124: 63345 + 515 = 63860
Step 125: 63860 + 515 = 64375
Step 126: 64375 + 515 = 64890
Step 127: 64890 + 515 = 65405
Step 128: 65405 + 515 = 65920
Step 129: 65920 + 515 = 66435
Step 130: 66435 + 515 = 66950
Step 131: 66950 + 515 = 67465
Step 132: 67465 + 515 = 67980
Step 133: 67980 + 515 = 68495
Step 134: 68495 + 515 = 69010
Step 135: 69010 + 515 = 69525
Step 136: 69525 + 515 = 70040
Step 137: 70040 + 515 = 70555
Step 138: 70555 + 515 = 71070
Step 139: 71070 + 515 = 71585
Step 140: 71585 + 515 = 72100
Step 141: 72100 + 515 = 72615
Step 142: 72615 + 515 = 73130
Step 143: 73130 + 515 = 73645
Step 144: 73645 + 515 = 74160
Step 145: 74160 + 515 = 74675
Step 146: 74675 + 515 = 75190
Step 147: 75190 + 515 = 75705
Step 148: 75705 + 515 = 76220
Step 149: 76220 + 515 = 76735
Step 150: 76735 + 515 = 77250
Step 151: 77250 + 515 = 77765
Step 152: 77765 + 515 = 78280
Step 153: 78280 + 515 = 78795
Step 154: 78795 + 515 = 79310
Step 155: 79310 + 515 = 79825
Step 156: 79825 + 515 = 80340
Step 157: 80340 + 515 = 80855
Step 158: 80855 + 515 = 81370
Step 159: 81370 + 515 = 81885
Step 160: 81885 + 515 = 82400
Step 161: 82400 + 515 = 82915
Step 162: 82915 + 515 = 83430
Step 163: 83430 + 515 = 83945
Step 164: 83945 + 515 = 84460
Step 165: 84460 + 515 = 84975
Step 166: 84975 + 515 = 85490
Step 167: 85490 + 515 = 86005
Step 168: 86005 + 515 = 86520
Step 169: 86520 + 515 = 87035
Step 170: 87035 + 515 = 87550
Step 171: 87550 + 515 = 88065
Step 172: 88065 + 515 = 88580
Step 173: 88580 + 515 = 89095
Step 174: 89095 + 515 = 89610
Step 175: 89610 + 515 = 90125
Step 176: 90125 + 515 = 90640
Step 177: 90640 + 515 = 91155
Step 178: 91155 + 515 = 91670
Step 179: 91670 + 515 = 92185
Step 180: 92185 + 515 = 92700
Step 181: 92700 + 515 = 93215
Step 182: 93215 + 515 = 93730
Step 183: 93730 + 515 = 94245
Step 184: 94245 + 515 = 94760
Step 185: 94760 + 515 = 95275
Step 186: 95275 + 515 = 95790
Step 187: 95790 + 515 = 96305
Step 188: 96305 + 515 = 96820
Step 189: 96820 + 515 = 97335
Step 190: 97335 + 515 = 97850
Step 191: 97850 + 515 = 98365
Step 192: 98365 + 515 = 98880
Step 193: 98880 + 515 = 99395
Step 194: 99395 + 515 = 99910
Step 195: 99910 + 515 = 100425
Step 196: 100425 + 515 = 100940
Step 197: 100940 + 515 = 101455
Step 198: 101455 + 515 = 101970
Step 199: 101970 + 515 = 102485
Step 200: 102485 + 515 = 103000
Step 201: 103000 + 515 = 103515
Step 202: 103515 + 515 = 104030
Step 203: 104030 + 515 = 104545
Step 204: 104545 + 515 = 105060
Step 205: 105060 + 515 = 105575
Step 206: 105575 + 515 = 106090
Step 207: 106090 + 515 = 106605
Step 208: 106605 + 515 = 107120
Step 209: 107120 + 515 = 107635
Step 210: 107635 + 515 = 108150
Step 211: 108150 + 515 = 108665
Step 212: 108665 + 515 = 109180
Step 213: 109180 + 515 = 109695
Step 214: 109695 + 515 = 110210
Step 215: 110210 + 515 = 110725
Step 216: 110725 + 515 = 111240
Step 217: 111240 + 515 = 111755
Step 218: 111755 + 515 = 112270
Step 219: 112270 + 515 = 112785
Step 220: 112785 + 515 = 113300
Step 221: 113300 + 515 = 113815
Step 222: 113815 + 515 = 114330
Step 223: 114330 + 515 = 114845
Step 224: 114845 + 515 = 115360
Step 225: 115360 + 515 = 115875
Step 226: 115875 + 515 = 116390
Step 227: 116390 + 515 = 116905
Step 228: 116905 + 515 = 117420
Step 229: 117420 + 515 = 117935
Step 230: 117935 + 515 = 118450
Step 231: 118450 + 515 = 118965
Step 232: 118965 + 515 = 119480
Step 233: 119480 + 515 = 119995
Step 234: 119995 + 515 = 120510
Step 235: 120510 + 515 = 121025
Step 236: 121025 + 515 = 121540
Step 237: 121540 + 515 = 122055
Step 238: 122055 + 515 = 122570
Step 239: 122570 + 515 = 123085
Step 240: 123085 + 515 = 123600
Step 241: 123600 + 515 = 124115
Step 242: 124115 + 515 = 124630
Step 243: 124630 + 515 = 125145
Step 244: 125145 + 515 = 125660
Step 245: 125660 + 515 = 126175
Step 246: 126175 + 515 = 126690
Step 247: 126690 + 515 = 127205
Step 248: 127205 + 515 = 127720
Step 249: 127720 + 515 = 128235
Step 250: 128235 + 515 = 128750
Step 251: 128750 + 515 = 129265
Step 252: 129265 + 515 = 129780
Step 253: 129780 + 515 = 130295
Step 254: 130295 + 515 = 130810
Step 255: 130810 + 515 = 131325
Step 256: 131325 + 515 = 131840
Step 257: 131840 + 515 = 132355
Step 258: 132355 + 515 = 132870
Step 259: 132870 + 515 = 133385
Step 260: 133385 + 515 = 133900
Step 261: 133900 + 515 = 134415
Step 262: 134415 + 515 = 134930
Step 263: 134930 + 515 = 135445
Step 264: 135445 + 515 = 135960
Step 265: 135960 + 515 = 136475
Step 266: 136475 + 515 = 136990
Step 267: 136990 + 515 = 137505
Step 268: 137505 + 515 = 138020
Step 269: 138020 + 515 = 138535
Step 270: 138535 + 515 = 139050
Step 271: 139050 + 515 = 139565
Step 272: 139565 + 515 = 140080
Step 273: 140080 + 515 = 140595
Step 274: 140595 + 515 = 141110
Step 275: 141110 + 515 = 141625
Step 276: 141625 + 515 = 142140
Step 277: 142140 + 515 = 142655
Step 278: 142655 + 515 = 143170
Step 279: 143170 + 515 = 143685
Step 280: 143685 + 515 = 144200
Step 281: 144200 + 515 = 144715
Step 282: 144715 + 515 = 145230
Step 283: 145230 + 515 = 145745
Step 284: 145745 + 515 = 146260
Step 285: 146260 + 515 = 146775
Step 286: 146775 + 515 = 147290
Step 287: 147290 + 515 = 147805
Step 288: 147805 + 515 = 148320
Step 289: 148320 + 515 = 148835
Step 290: 148835 + 515 = 149350
Step 291: 149350 + 515 = 149865
Step 292: 149865 + 515 = 150380
Step 293: 150380 + 515 = 150895
Step 294: 150895 + 515 = 151410
Step 295: 151410 + 515 = 151925
Step 296: 151925 + 515 = 152440
Step 297: 152440 + 515 = 152955
Step 298: 152955 + 515 = 153470
Step 299: 153470 + 515 = 153985
Step 300: 153985 + 515 = 154500
Step 301: 154500 + 515 = 155015
Step 302: 155015 + 515 = 155530
Step 303: 155530 + 515 = 156045
Step 304: 156045 + 515 = 156560
Step 305: 156560 + 515 = 157075
Step 306: 157075 + 515 = 157590
Step 307: 157590 + 515 = 158105
Step 308: 158105 + 515 = 158620
Step 309: 158620 + 515 = 159135
Step 310: 159135 + 515 = 159650
Step 311: 159650 + 515 = 160165
Step 312: 160165 + 515 = 160680
Step 313: 160680 + 515 = 161195
Step 314: 161195 + 515 = 161710
Step 315: 161710 + 515 = 162225
Step 316: 162225 + 515 = 162740
Step 317: 162740 + 515 = 163255
Step 318: 163255 + 515 = 163770
Step 319: 163770 + 515 = 164285
Step 320: 164285 + 515 = 164800
Step 321: 164800 + 515 = 165315
Step 322: 165315 + 515 = 165830
Step 323: 165830 + 515 = 166345
Step 324: 166345 + 515 = 166860
Step 325: 166860 + 515 = 167375
Step 326: 167375 + 515 = 167890
Step 327: 167890 + 515 = 168405
Step 328: 168405 + 515 = 168920
Step 329: 168920 + 515 = 169435
Step 330: 169435 + 515 = 169950
Step 331: 169950 + 515 = 170465
Step 332: 170465 + 515 = 170980
Step 333: 170980 + 515 = 171495
Step 334: 171495 + 515 = 172010
Step 335: 172010 + 515 = 172525
Step 336: 172525 + 515 = 173040
Step 337: 173040 + 515 = 173555
Step 338: 173555 + 515 = 174070
Step 339: 174070 + 515 = 174585
Step 340: 174585 + 515 = 175100
Step 341: 175100 + 515 = 175615
Step 342: 175615 + 515 = 176130
Step 343: 176130 + 515 = 176645
Step 344: 176645 + 515 = 177160
Step 345: 177160 + 515 = 177675
Step 346: 177675 + 515 = 178190
Step 347: 178190 + 515 = 178705
Step 348: 178705 + 515 = 179220
Step 349: 179220 + 515 = 179735
Step 350: 179735 + 515 = 180250
Step 351: 180250 + 515 = 180765
Step 352: 180765 + 515 = 181280
Step 353: 181280 + 515 = 181795
Step 354: 181795 + 515 = 182310
Step 355: 182310 + 515 = 182825
Step 356: 182825 + 515 = 183340
Step 357: 183340 + 515 = 183855
Step 358: 183855 + 515 = 184370
Step 359: 184370 + 515 = 184885
Step 360: 184885 + 515 = 185400
Step 361: 185400 + 515 = 185915
Step 362: 185915 + 515 = 186430
Step 363: 186430 + 515 = 186945
Step 364: 186945 + 515 = 187460
Step 365: 187460 + 515 = 187975
Step 366: 187975 + 515 = 188490
Step 367: 188490 + 515 = 189005
Step 368: 189005 + 515 = 189520
Step 369: 189520 + 515 = 190035
Step 370: 190035 + 515 = 190550
Step 371: 190550 + 515 = 191065
Step 372: 191065 + 515 = 191580
Step 373: 191580 + 515 = 192095
Step 374: 192095 + 515 = 192610
Step 375: 192610 + 515 = 193125
Step 376: 193125 + 515 = 193640
Step 377: 193640 + 515 = 194155
Step 378: 194155 + 515 = 194670
Step 379: 194670 + 515 = 195185
Step 380: 195185 + 515 = 195700
Step 381: 195700 + 515 = 196215
Step 382: 196215 + 515 = 196730
Step 383: 196730 + 515 = 197245
Step 384: 197245 + 515 = 197760
Step 385: 197760 + 515 = 198275
Step 386: 198275 + 515 = 198790
Step 387: 198790 + 515 = 199305
Step 388: 199305 + 515 = 199820
Step 389: 199820 + 515 = 200335
Step 390: 200335 + 515 = 200850
Step 391: 200850 + 515 = 201365
Step 392: 201365 + 515 = 201880
Step 393: 201880 + 515 = 202395
Step 394: 202395 + 515 = 202910
Step 395: 202910 + 515 = 203425
Step 396: 203425 + 515 = 203940
Step 397: 203940 + 515 = 204455
Step 398: 204455 + 515 = 204970
Step 399: 204970 + 515 = 205485
Step 400: 205485 + 515 = 206000
Step 401: 206000 + 515 = 206515
Step 402: 206515 + 515 = 207030
Step 403: 207030 + 515 = 207545
Step 404: 207545 + 515 = 208060
Step 405: 208060 + 515 = 208575
Step 406: 208575 + 515 = 209090
Step 407: 209090 + 515 = 209605
Step 408: 209605 + 515 = 210120
Step 409: 210120 + 515 = 210635
Step 410: 210635 + 515 = 211150
Step 411: 211150 + 515 = 211665
Step 412: 211665 + 515 = 212180
Step 413: 212180 + 515 = 212695
Step 414: 212695 + 515 = 213210
Step 415: 213210 + 515 = 213725
Step 416: 213725 + 515 = 214240
Step 417: 214240 + 515 = 214755
Step 418: 214755 + 515 = 215270
Step 419: 215270 + 515 = 215785
Step 420: 215785 + 515 = 216300
Step 421: 216300 + 515 = 216815
Step 422: 216815 + 515 = 217330
Step 423: 217330 + 515 = 217845
Step 424: 217845 + 515 = 218360
Step 425: 218360 + 515 = 218875
Step 426: 218875 + 515 = 219390
Step 427: 219390 + 515 = 219905
Step 428: 219905 + 515 = 220420
Step 429: 220420 + 515 = 220935
Step 430: 220935 + 515 = 221450
Step 431: 221450 + 515 = 221965
Step 432: 221965 + 515 = 222480
Step 433: 222480 + 515 = 222995
Step 434: 222995 + 515 = 223510
Step 435: 223510 + 515 = 224025
Step 436: 224025 + 515 = 224540
Step 437: 224540 + 515 = 225055
Step 438: 225055 + 515 = 225570
Step 439: 225570 + 515 = 226085
Step 440: 226085 + 515 = 226600
Step 441: 226600 + 515 = 227115
Step 442: 227115 + 515 = 227630
Step 443: 227630 + 515 = 228145
Step 444: 228145 + 515 = 228660
Step 445: 228660 + 515 = 229175
Step 446: 229175 + 515 = 229690
Step 447: 229690 + 515 = 230205
Step 448: 230205 + 515 = 230720
Step 449: 230720 + 515 = 231235
Step 450: 231235 + 515 = 231750
Step 451: 231750 + 515 = 232265

So, 515*451 = 232265